NCIS Season 8 Episode 19 Tell AllEpisode Synopsis: NCIS “Tell-All” Season 8 Episode 19 – NCIS connects a message in blood left by a murdered Navy commander to a manuscript that may contain classified military information, on NCIS, Tuesday, March 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. A navy commander's murder leads the team to a mysterious manuscript and a possible threat to classified military secrets. When a Navy Commander found murdered leaves behind a message written in blood, the NCIS team links it to a manuscript that may hold a threat to the national security.